Overview
The LM211N is a voltage comparator produced by STMicroelectronics. It is part of the LM111, LM211, and LM311 family, known for their low input currents and wide range of supply voltage compatibility. These comparators can operate from standard ±15V operational amplifier supplies down to a single +5V supply used in IC logic. The LM211N is particularly versatile, with its output compatible with RTL-DTL, TTL, and MOS circuits, and capable of switching voltages up to +50V at output currents as high as 50mA.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | +5V to ±15V | V |
| Maximum Input Current | 150 nA | nA |
| Maximum Offset Current | 20 nA | nA |
| Differential Input Voltage Range | ±30 V | V |
| Power Consumption | 135 mW at ±15 V | mW |
| Output Current | 50 mA | mA |
| Operating Temperature Range | -40°C to +105°C | °C |
| Input Offset Voltage | 0.7 to 4 mV | mV |
| Input Bias Current | 60 to 150 nA | nA |
| Large Signal Voltage Gain | 40 to 200 V/mV | V/mV |
| Response Time | 200 ns | ns |
Key Features
- Low input currents: Maximum input current of 150 nA and maximum offset current of 20 nA.
- Wide supply voltage range: Compatible with +5V to ±15V supplies.
- High output current: Capable of switching voltages up to +50V at output currents as high as 50mA.
- Compatibility with various logic circuits: Output is compatible with RTL-DTL, TTL, and MOS circuits.
- Low power consumption: 135 mW at ±15V.
- Wide operating temperature range: -40°C to +105°C for the LM211N.
Applications
- Analog-to-digital converters
- Threshold detectors
- Zero-crossing detectors
- Level detectors
- Window comparators
- General-purpose voltage comparison in various electronic circuits.
Q & A
- What is the maximum input current of the LM211N?
The maximum input current of the LM211N is 150 nA.
- What is the differential input voltage range of the LM211N?
The differential input voltage range of the LM211N is ±30 V.
- What is the output current capability of the LM211N?
The LM211N can switch voltages up to +50V at output currents as high as 50mA.
- What is the power consumption of the LM211N at ±15V supply?
The power consumption of the LM211N at ±15V supply is 135 mW.
- What is the operating temperature range of the LM211N?
The operating temperature range of the LM211N is -40°C to +105°C.
- Is the LM211N compatible with TTL and MOS circuits?
Yes, the LM211N output is compatible with RTL-DTL, TTL, and MOS circuits.
- What is the response time of the LM211N for a 100 mV input step with 5 mV overdrive?
The response time of the LM211N for a 100 mV input step with 5 mV overdrive is 200 ns.
- What are the typical applications of the LM211N?
The LM211N is typically used in analog-to-digital converters, threshold detectors, zero-crossing detectors, level detectors, and general-purpose voltage comparison in various electronic circuits.
- Is the LM211N available in different packages?
Yes, the LM211N is available in DIP8 and SO-8 packages.
- Is the LM211N RoHS compliant?
Yes, the LM211N is RoHS compliant and comes in Ecopack3 grade.
